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Fix Heltec Wireless Paper voltage #1584

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Fix Heltec Wireless Paper voltage #1584

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5 changes: 4 additions & 1 deletion variants/heltec_v3/HeltecV3Board.h
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,9 @@
#ifndef PIN_ADC_CTRL // set in platformio.ini for Heltec Wireless Tracker (2)
#define PIN_ADC_CTRL 37
#endif
#ifndef ADC_MULTIPLIER //default ADC multiplier
#define ADC_MULTIPLIER 1
#endif
#define PIN_ADC_CTRL_ACTIVE LOW
#define PIN_ADC_CTRL_INACTIVE HIGH

Expand Down Expand Up @@ -88,7 +91,7 @@ class HeltecV3Board : public ESP32Board {

digitalWrite(PIN_ADC_CTRL, !adc_active_state);

return (5.42 * (3.3 / 1024.0) * raw) * 1000;
return (5.42 * (3.3 / 1024.0) * raw) * 1000 * ADC_MULTIPLIER;
}

const char* getManufacturerName() const override {
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1 change: 1 addition & 0 deletions variants/heltec_wireless_paper/platformio.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ build_flags =
;-D PIN_BOARD_SCL=18 ; same GPIO as P_LORA_TX_LED
-D PIN_USER_BTN=0
-D PIN_VEXT_EN=45
-D ADC_MULTIPLIER=1.55
-D PIN_VBAT_READ=20
-D PIN_ADC_CTRL=19
-D SX126X_DIO2_AS_RF_SWITCH=true
Expand Down